Decades: 1190s 1200s 1210s 1220s 1230s - 1240s - 1250s 1260s 1270s 1280s 1290s
Years: 1240 1241 1242 1243 1244 - 1245 - 1246 1247 1248 1249 1250
Births
Deaths
... a document, using Thomas Edison's cylinder. March 4 - Russo-Japanese War: Russian troops in Korea retreat toward Manchuria followed by 100,000 Japanese troops. April ...